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A metric to quantify the time-varying characteristics of underwater acoustic communication channels.

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Názov: A metric to quantify the time-varying characteristics of underwater acoustic communication channels.
Autori: Li, Xianpeng, Tai, Yupeng, Wang, Haibin, Wang, Jun, Jia, Shuo, Zhang, Yonglin, Gan, Weiming
Zdroj: JASA Express Letters; Jul2024, Vol. 4 Issue 7, p1-8, 8p
Predmety: UNDERWATER acoustic communication, DECISION feedback equalizers, SIGNAL-to-noise ratio, INFORMATION storage & retrieval systems, TIME-varying systems
Abstrakt: Underwater acoustic communication signals suffer from time dispersion due to time-varying multipath propagation in the ocean. This leads to intersymbol interference, which in turn degrades the performance of the communication system. Typically, the channel correlation functions are employed to describe these characteristics. In this paper, a metric called the channel average correlation coefficient (CACC) is proposed from the correlation function to quantify the time-varying characteristics. It has a theoretical negative relationship with communication performance. Comparative analysis involving simulations and experimental data processing highlights the superior effectiveness of CACC over the traditional metric, the channel coherence time. [ABSTRACT FROM AUTHOR]
Copyright of JASA Express Letters is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A metric to quantify the time-varying characteristics of underwater acoustic communication channels.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Xianpeng%22">Li, Xianpeng</searchLink><br /><searchLink fieldCode="AR" term="%22Tai%2C+Yupeng%22">Tai, Yupeng</searchLink><br /><searchLink fieldCode="AR" term="%22Wang%2C+Haibin%22">Wang, Haibin</searchLink><br /><searchLink fieldCode="AR" term="%22Wang%2C+Jun%22">Wang, Jun</searchLink><br /><searchLink fieldCode="AR" term="%22Jia%2C+Shuo%22">Jia, Shuo</searchLink><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Yonglin%22">Zhang, Yonglin</searchLink><br /><searchLink fieldCode="AR" term="%22Gan%2C+Weiming%22">Gan, Weiming</searchLink>
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  Data: JASA Express Letters; Jul2024, Vol. 4 Issue 7, p1-8, 8p
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22UNDERWATER+acoustic+communication%22">UNDERWATER acoustic communication</searchLink><br /><searchLink fieldCode="DE" term="%22DECISION+feedback+equalizers%22">DECISION feedback equalizers</searchLink><br /><searchLink fieldCode="DE" term="%22SIGNAL-to-noise+ratio%22">SIGNAL-to-noise ratio</searchLink><br /><searchLink fieldCode="DE" term="%22INFORMATION+storage+%26+retrieval+systems%22">INFORMATION storage & retrieval systems</searchLink><br /><searchLink fieldCode="DE" term="%22TIME-varying+systems%22">TIME-varying systems</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Underwater acoustic communication signals suffer from time dispersion due to time-varying multipath propagation in the ocean. This leads to intersymbol interference, which in turn degrades the performance of the communication system. Typically, the channel correlation functions are employed to describe these characteristics. In this paper, a metric called the channel average correlation coefficient (CACC) is proposed from the correlation function to quantify the time-varying characteristics. It has a theoretical negative relationship with communication performance. Comparative analysis involving simulations and experimental data processing highlights the superior effectiveness of CACC over the traditional metric, the channel coherence time. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of JASA Express Letters is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1121/10.0026601
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      – Code: eng
        Text: English
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      – SubjectFull: UNDERWATER acoustic communication
        Type: general
      – SubjectFull: DECISION feedback equalizers
        Type: general
      – SubjectFull: SIGNAL-to-noise ratio
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      – SubjectFull: INFORMATION storage & retrieval systems
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      – SubjectFull: TIME-varying systems
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            – D: 01
              M: 07
              Text: Jul2024
              Type: published
              Y: 2024
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